Were are the koopa kids now?

[The Luigi Fan]

I think they were disowned by their father for being such incompetents.

[screech the hedgehog]

I think they were in a few games and people got tired of them. but storywise, I think they still hang around bowsers castle. they just don't fight. or maybe they were never his children in the first place. Maybe bowser got them on loan from another koopa. I doubt it but it's possible.